Finding the Fourth Proportional to 19,643,056.97, 27,105,345.57 and 11,385,709.40
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Solution
The fourth proportional to 19,643,056.97, 27,105,345.57 and 11,385,709.40 is: 15,711,077.38
Step by Step Solution
- Step 1: Write the proportion equation
19,643,056.97 : 27,105,345.57 = 11,385,709.40 : x - Step 2: Convert to fraction form
19,643,056.97/27,105,345.57 = 11,385,709.40/x - Step 3: Cross multiply
19,643,056.97x = 27,105,345.57 × 11,385,709.40 - Step 4: Simplify right side
19,643,056.97x = 308,613,587,905,546 - Step 5: Solve for x
x = 308,613,587,905,546/19,643,056.97 - Step 6: Final answer
x = 15,711,077.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.